Find the value of a; if x-a is a factor
of p(x) = x^3-ax^2+ 2x +a-1
please give answer fast
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Answer:
a=1/3
Step-by-step explanation:
p (x)=x^3-ax^2+2x+a-1
x-a=0
x=0+a
x=a
p (a)=a^3-a×a^2+2a+a-1=0
=a^3-a^3+3a-1=0
=3a-1=0
=3a=1
=a=1/3
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